Contact-mounting means



' Aug-n.512 1924. 1,505,003

y G. ZINT CONTACT MOUNTING MEANS original 'Filed .March 2s 1923 gwvw/toz Iii-:nnss ZIN'r Patented Aug. 12, 1924s GEORGE ZINT, OF WAPAKONETA, OHIO.

CQNTACT-MOUNTING MEANS.

Original application filed Marcha, 1923, Serial No. 627,773.

Divided and this application filed January 2, 1924. Serial No. 683,975.

To all whom z't 'may concern.'

Be it known that I, GEORGE ZINT, a citi- Zen of the United States, residing at Wapakoneta, in the county of Auglaize and State of Ohio, have invented certa-in new and useful Improvements in Contact- Mounting Means; and I do decla-re the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in mounting means for electrical contacts and the present disclosure is directed more particularly to an electrical switch for railway signalling, said switch including a pair of (zo-operable contacts and binding posts in connection therewith, the object of the invention being to provide an effective connection between said contacts and binding posts, which in addition to` establishing the necessary electrical conductivity, will prevent turning of the contacts and binding posts. A

The construct-ion of the switch is protected in my pending U. S. application,-

Serial No. 627,773, filed March 26, and the subjectl matter of the present application forms a. division of said application.

In the accompanying drawing which forms a part of this application,

Figure l is an elevation showing the application of the invention to a switch of the type set forth.

Figure 2 is a sectional View showing more particularly the contact mounting means.

Figures 3 and 4 are perspective views of the two insulators and associated parts, used in mounting the contacts.

Briefly mentioned, the switch disclosed, 1ncludes a casing C adapted to be mounted at one side of a railway rail R, a wheel-operated, spring-returned arm A and a pair of contacts and 26 controlled by the movement of said arm.

For mounting the contacts 25 and 26 and insulating them from each/other as well as from the casing C, I have provided a novel construction. The numeral 27 designates an inner insulator contacting with one end of the casing C, said insulator having an inwardly extending boss 28 passing through an opening in the casing andformed with openings passing through said boss, through which openings, the stationary ends 29 of the contacts extend, said ends being preferably of circular section. The extremities of the contacts 29 are bent laterally upon the outer face of the insulator 27 as indicated at 30 and are received frictionally in grooves 31 formed in the heads of binding posts 32. These binding posts pass through openings in an outer insulator 33 and are out of alinement with the openings through which the contact ends 29 pass. The inner surface of the insulator 33 is preferably grooved as indicated at 34 to receive the terminals 30. Screws or the like are passed through openings 35 in the outer and inner insulators 33 and 27 respectively, and are threaded or otherwise connected with the casing C, so as to hold the two insulators against opposite sides of the contact extremities 30 as well as to hold said insulators securely upon the casing. ldhen attaching the necessary wiring to the binding posts 32, it is of course necessary to iirst loosen and then tighten the nuts of said binding posts, but attention is directed to the fact that these posts are held against rotation by their engagement with the" contact extremities 30. Similarly, the contacts 25 and 26 cannot rotate on account of having their lateral extremities received in the grooves 3l of the binding posts.

By providing the construction shown and described or a substantial equivalent thereof, simple and inexpensive, yet eiiicient means are provided for effectively mounting the binding posts and contacts and securing electrical contact between them. A s excellent results are obtained from these details, they are preferably followed, but within the scope of the invention as claimed, numerous minor changes may be made.

I claim:

1. In a Contact mounting means, a pair of insulators secured together and having openings out of alinernent with each other,

5 a Contact passing through the opening of one insulator and having a lateral end clamped between the two insulators, and a binding post in the opening of theother insulator having a. grooved head whose groove receives said lateral Contact end. 10

2. A structure as speciied in claim 1 one of said insulators being grooved to receive a portion of said lateral Contact end.

In testimony whereof I have hereunto ai fixed my signature.

GEORGE ZINT. 

